PGT-SR (preimplantation genetic testing for structural rearrangements)

Written by Zayn Miah & R KhanomLast updated 17 September 2026Not clinically reviewed

A test on cells biopsied from an embryo to check for chromosome structural rearrangements, used when a parent carries a known chromosomal translocation.

In plain English

It's a test used when a parent carries a rearranged chromosome structure, checking embryos for related imbalances.

Why it matters

It's used specifically for known chromosomal translocations or rearrangements, which is different to the general screening PGT-A does.

Related terms

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